 @@ -1,441 +1,440 @@
-/*	$NetBSD: cpu.h,v 1.7 2019/12/04 07:49:39 skrll Exp $	*/
+/*	$NetBSD: cpu.h,v 1.8 2019/12/05 03:59:39 riastradh Exp $	*/
 /*	$OpenBSD: cpu.h,v 1.55 2008/07/23 17:39:35 kettenis Exp $	*/
 /*
  * Copyright (c) 2000-2004 Michael Shalayeff
  * All rights reserved.
+ *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  * 1. Redistributions of source code must retain the above copyright
  *    notice, this list of conditions and the following disclaimer.
  * 2. Redistributions in binary form must reproduce the above copyright
  *    notice, this list of conditions and the following disclaimer in the
  *    documentation and/or other materials provided with the distribution.
+ *
  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
  * IN NO EVENT SHALL THE AUTHOR OR HIS RELATIVES BE LIABLE FOR ANY DIRECT,
  * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
  * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
  * SERVICES; LOSS OF MIND, USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
  * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
  * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
  * THE POSSIBILITY OF SUCH DAMAGE.
  */
 /*
  * Copyright (c) 1988-1994, The University of Utah and
  * the Computer Systems Laboratory at the University of Utah (CSL).
  * All rights reserved.
+ *
  * Permission to use, copy, modify and distribute this software is hereby
  * granted provided that (1) source code retains these copyright, permission,
  * and disclaimer notices, and (2) redistributions including binaries
  * reproduce the notices in supporting documentation, and (3) all advertising
  * materials mentioning features or use of this software display the following
  * acknowledgement: ``This product includes software developed by the
  * Computer Systems Laboratory at the University of Utah.''
+ *
  * THE UNIVERSITY OF UTAH AND CSL ALLOW FREE USE OF THIS SOFTWARE IN ITS "AS
  * IS" CONDITION.  THE UNIVERSITY OF UTAH AND CSL DISCLAIM ANY LIABILITY OF
  * ANY KIND FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
+ *
  * CSL requests users of this software to return to csl-dist@cs.utah.edu any
  * improvements that they make and grant CSL redistribution rights.
+ *
- * 	Utah $Hdr: cpu.h 1.19 94/12/16$
+ * 	Utah $Hdr$
  */
 #ifndef	_MACHINE_CPU_H_
 #define	_MACHINE_CPU_H_
 #ifdef _KERNEL_OPT
 #include "opt_cputype.h"
 #include "opt_multiprocessor.h"
 #endif
 #include <machine/trap.h>
 #include <machine/frame.h>
 #include <machine/reg.h>
 #include <machine/intrdefs.h>
 #ifndef __ASSEMBLER__
 #include <machine/intr.h>
 #endif
 #ifndef _LOCORE
 /* types */
 enum hppa_cpu_type {
 	hpc_unknown,
 	hpcx,	/* PA7000 (x)		PA 1.0 */
 	hpcxs,	/* PA7000 (s)		PA 1.1a */
 	hpcxt,	/* PA7100 (t)		PA 1.1b */
 	hpcxl,	/* PA7100LC (l)		PA 1.1c */
 	hpcxtp,	/* PA7200 (t')		PA 1.1d */
 	hpcxl2,	/* PA7300LC (l2)	PA 1.1e */
 	hpcxu,	/* PA8000 (u)		PA 2.0 */
 	hpcxup,	/* PA8200 (u+)		PA 2.0 */
 	hpcxw,	/* PA8500 (w)		PA 2.0 */
 	hpcxwp,	/* PA8600 (w+)		PA 2.0 */
 	hpcxw2, /* PA8700 (piranha)	PA 2.0 */
 	mako	/* PA8800 (mako)	PA 2.0 */
 };
 #ifdef _KERNEL
 /*
  * A CPU description.
  */
 struct hppa_cpu_info {
 	/* The official name of the chip. */
 	const char *hci_chip_name;
 	/* The nickname for the chip. */
 	const char *hci_chip_nickname;
 	/* The type and PA-RISC specification of the chip. */
 	const char hci_chip_type[8];
 	enum hppa_cpu_type hci_cputype;
 	int  hci_cpuversion;
 	int  hci_features;		/* CPU types and features */
 #define	HPPA_FTRS_TLBU		0x00000001
 #define	HPPA_FTRS_BTLBU		0x00000002
 #define	HPPA_FTRS_HVT		0x00000004
 #define	HPPA_FTRS_W32B		0x00000008
 	const char *hci_chip_spec;
 	int (*desidhash)(void);
 	const u_int *itlbh, *dtlbh, *itlbnah, *dtlbnah, *tlbdh;
 	int (*dbtlbins)(int, pa_space_t, vaddr_t, paddr_t, vsize_t, u_int);
 	int (*ibtlbins)(int, pa_space_t, vaddr_t, paddr_t, vsize_t, u_int);
 	int (*btlbprg)(int);
 	int (*hptinit)(vaddr_t, vsize_t);
 };
 extern const struct hppa_cpu_info *hppa_cpu_info;
 extern int cpu_modelno;
 extern int cpu_revision;
 #endif
 #endif
 /*
  * COPR/SFUs
  */
 #define	HPPA_FPUS	0xc0
 #define	HPPA_PMSFUS	0x20	/* ??? */
 /*
  * Exported definitions unique to hppa/PA-RISC cpu support.
  */
 /*
  * COPR/SFUs
  */
 #define	HPPA_FPUVER(w)	(((w) & 0x003ff800) >> 11)
 #define	HPPA_FPU_OP(w)	((w) >> 26)
 #define	HPPA_FPU_UNMPL	0x01	/* exception reg, the rest is << 1 */
 #define	HPPA_FPU_ILL	0x80	/* software-only */
 #define	HPPA_FPU_I	0x01
 #define	HPPA_FPU_U	0x02
 #define	HPPA_FPU_O	0x04
 #define	HPPA_FPU_Z	0x08
 #define	HPPA_FPU_V	0x10
 #define	HPPA_FPU_D	0x20
 #define	HPPA_FPU_T	0x40
 #define	HPPA_FPU_XMASK	0x7f
 #define	HPPA_FPU_T_POS	25
 #define	HPPA_FPU_RM	0x00000600
 #define	HPPA_FPU_CQ	0x00fff800
 #define	HPPA_FPU_C	0x04000000
 #define	HPPA_FPU_FLSH	27
 #define	HPPA_FPU_INIT	(0)
 #define	HPPA_FPU_FORK(s) ((s) & ~((uint64_t)(HPPA_FPU_XMASK) << 32))
 /*
  * definitions of cpu-dependent requirements
  * referenced in generic code
  */
 #if defined(HP8000_CPU) || defined(HP8200_CPU) || \
     defined(HP8500_CPU) || defined(HP8600_CPU)
 /* PA2.0 aliases */
 #define	HPPA_PGALIAS	0x00400000
 #define	HPPA_PGAMASK	0xffc00000	/* PA bits 0-9 not used in index */
 #define	HPPA_PGAOFF	0x003fffff
 #else
 /* PA1.x aliases */
 #define	HPPA_PGALIAS	0x00100000
 #define	HPPA_PGAMASK	0xfff00000	/* PA bits 0-11 not used in index */
 #define	HPPA_PGAOFF	0x000fffff
 #endif
 #define	HPPA_SPAMASK	0xf0f0f000	/* PA bits 0-3,8-11,16-19 not used */
 #define	HPPA_IOSPACE	0xf0000000
 #define	HPPA_IOLEN      0x10000000
 #define	HPPA_PDC_LOW	0xef000000
 #define	HPPA_PDC_HIGH	0xf1000000
 #define	HPPA_IOBCAST	0xfffc0000
 #define	HPPA_LBCAST	0xfffc0000
 #define	HPPA_GBCAST	0xfffe0000
 #define	HPPA_FPA	0xfff80000
 #define	HPPA_FLEX_DATA	0xfff80001
 #define	HPPA_DMA_ENABLE	0x00000001
 #define	HPPA_SPA_ENABLE	0x00000020
 #define	HPPA_NMODSPBUS	64
 #ifdef MULTIPROCESSOR
 #define	GET_CURCPU(r)		mfctl CR_CURCPU, r
 #define	GET_CURCPU_SPACE(s, r)	GET_CURCPU(r)
 #define	GET_CURLWP(r)		mfctl CR_CURCPU, r ! ldw CI_CURLWP(r), r
 #define	GET_CURLWP_SPACE(s, r)	mfctl CR_CURCPU, r ! ldw CI_CURLWP(s, r), r
 #define	SET_CURLWP(r,t)		mfctl CR_CURCPU, t ! stw r, CI_CURLWP(t)
 #else /*  MULTIPROCESSOR */
 #define	GET_CURCPU(r)		mfctl CR_CURLWP, r ! ldw L_CPU(r), r
 #define	GET_CURCPU_SPACE(s, r)	mfctl CR_CURLWP, r ! ldw L_CPU(s, r), r
 #define	GET_CURLWP(r)		mfctl CR_CURLWP, r
 #define	GET_CURLWP_SPACE(s, r)	GET_CURLWP(r)
 #define	SET_CURLWP(r,t) mtctl   r, CR_CURLWP
 #endif /*  MULTIPROCESSOR */
 #ifndef _LOCORE
 #ifdef _KERNEL
 /*
  * External definitions unique to PA-RISC cpu support.
  * These are the "public" declarations - those needed in
  * machine-independent source code.  The "private" ones
  * are in machdep.h.
+ *
  * Note that the name of this file is NOT meant to imply
  * that it has anything to do with PA-RISC CPU stuff.
  * The name "cpu" is historical, and used in the common
  * code to identify machine-dependent functions, etc.
  */
 /* clockframe describes the system before we took an interrupt. */
 struct clockframe {
 	int	cf_flags;
 	int	cf_spl;
 	u_int	cf_pc;
 };
 #define	CLKF_PC(framep)		((framep)->cf_pc)
 #define	CLKF_INTR(framep)	((framep)->cf_flags & TFF_INTR)
 #define	CLKF_USERMODE(framep)	((framep)->cf_flags & T_USER)
 int	clock_intr(void *);
 /*
  * LWP_PC: the program counter for the given lwp.
  */
 #define	LWP_PC(l)		((l)->l_md.md_regs->tf_iioq_head)
 #define	cpu_signotify(l)	(setsoftast(l))
 #define	cpu_need_proftick(l)	((l)->l_pflag |= LP_OWEUPC, setsoftast(l))
 #endif /* _KERNEL */
 #ifndef __ASSEMBLER__
 #if defined(_KERNEL) || defined(_KMEMUSER)
 #include <sys/cpu_data.h>
 #include <sys/evcnt.h>
 /*
  * Note that the alignment of ci_trap_save is important since we want to keep
  * it within a single cache line.  As a result, it must be kept as the first
  * entry within the cpu_info struct.
  */
 struct cpu_info {
 	/* Keep this first to simplify the trap handlers */
 	register_t	ci_trapsave[16];/* the "phys" part of frame */
 	struct cpu_data ci_data;	/* MI per-cpu data */
 #ifndef _KMEMUSER
 	hppa_hpa_t	ci_hpa;
 	register_t	ci_psw;		/* Processor Status Word. */
 	paddr_t		ci_fpu_state;	/* LWP FPU state address, or zero. */
 	u_long		ci_itmr;
 	int		ci_cpuid;	/* CPU index (see cpus[] array) */
 	int		ci_mtx_count;
 	int		ci_mtx_oldspl;
 	int		ci_want_resched;
 	volatile int	ci_cpl;
 	volatile int	ci_ipending;	/* The pending interrupts. */
 	u_int		ci_intr_depth;	/* Nonzero iff running an interrupt. */
 	u_int		ci_ishared;
 	u_int		ci_eiem;
 	u_int		ci_imask[NIPL];
 	struct hppa_interrupt_register	ci_ir;
 	struct hppa_interrupt_bit	ci_ib[HPPA_INTERRUPT_BITS];
 	struct lwp	*ci_onproc;	/* current user LWP / kthread */
 #if defined(MULTIPROCESSOR)
 	struct lwp	*ci_curlwp;	/* CPU owner */
 	paddr_t		ci_stack;	/* stack for spin up */
 	volatile int	ci_flags;	/* CPU status flags */
 #define	CPUF_PRIMARY	0x0001		/* ... is monarch/primary */
 #define	CPUF_RUNNING	0x0002 		/* ... is running. */
 	struct lwp	*ci_onproc;	/* current user LWP / kthread */
 	volatile u_long	ci_ipi;		/* IPIs pending */
 	struct cpu_softc *ci_softc;
 #endif
 #endif /* !_KMEMUSER */
 } __aligned(64);
 #endif /* _KERNEL || _KMEMUSER */
 #endif /* __ASSEMBLER__ */
 #if defined(_KERNEL)
 /*
  * definitions of cpu-dependent requirements
  * referenced in generic code
  */
 void	cpu_proc_fork(struct proc *, struct proc *);
 #ifdef MULTIPROCESSOR
 /* Number of CPUs in the system */
 extern int hppa_ncpu;
 #define	HPPA_MAXCPUS	4
 #define	cpu_number()			(curcpu()->ci_cpuid)
 #define	CPU_IS_PRIMARY(ci)		((ci)->ci_cpuid == 0)
 #define	CPU_INFO_ITERATOR		int
 #define	CPU_INFO_FOREACH(cii, ci)	cii = 0, ci =  &cpus[0]; cii < hppa_ncpu; cii++, ci++
 void	cpu_boot_secondary_processors(void);
 static __inline struct cpu_info *
 hppa_curcpu(void)
+{
 	struct cpu_info *ci;
 	__asm volatile("mfctl %1, %0" : "=r" (ci): "i" (CR_CURCPU));
 	return ci;
+}
 #define	curcpu()			hppa_curcpu()
 #else /*  MULTIPROCESSOR */
 #define	HPPA_MAXCPUS	1
 #define	curcpu()			(&cpus[0])
 #define	cpu_number()			0
 static __inline struct lwp *
 hppa_curlwp(void)
+{
 	struct lwp *l;
 	__asm volatile("mfctl %1, %0" : "=r" (l): "i" (CR_CURLWP));
 	return l;
+}
 #define	curlwp				hppa_curlwp()
 #endif /* MULTIPROCESSOR */
 extern struct cpu_info cpus[HPPA_MAXCPUS];
 #define	DELAY(x) delay(x)
 static __inline paddr_t
 kvtop(const void *va)
+{
 	paddr_t pa;
 	__asm volatile ("lpa %%r0(%1), %0" : "=r" (pa) : "r" (va));
 	return pa;
+}
 extern int (*cpu_desidhash)(void);
 static __inline bool
 hppa_cpu_ispa20_p(void)
+{
 	return (hppa_cpu_info->hci_features & HPPA_FTRS_W32B) != 0;
+}
 static __inline bool
 hppa_cpu_hastlbu_p(void)
+{
 	return (hppa_cpu_info->hci_features & HPPA_FTRS_TLBU) != 0;
+}
 void	delay(u_int);
 void	hppa_init(paddr_t, void *);
 void	trap(int, struct trapframe *);
 void	hppa_ras(struct lwp *);
 int	spcopy(pa_space_t, const void *, pa_space_t, void *, size_t);
 int	spstrcpy(pa_space_t, const void *, pa_space_t, void *, size_t,
     size_t *);
 int	copy_on_fault(void);
 void	lwp_trampoline(void);
 int	cpu_dumpsize(void);
 int	cpu_dump(void);
 #ifdef MULTIPROCESSOR
 void	cpu_boot_secondary_processors(void);
 void	cpu_hw_init(void);
 void	cpu_hatch(void);
 #endif
 #endif	/* _KERNEL */
 /*
  * Boot arguments stuff
  */
 #define	BOOTARG_LEN	(PAGE_SIZE)
 #define	BOOTARG_OFF	(0x10000)
 /*
  * CTL_MACHDEP definitions.
  */
 #define	CPU_CONSDEV		1	/* dev_t: console terminal device */
 #define	CPU_BOOTED_KERNEL	2	/* string: booted kernel name */
 #define	CPU_LCD_BLINK           3	/* int: twiddle heartbeat LED/LCD */
 #ifdef _KERNEL
 #include <sys/queue.h>
 struct blink_lcd {
 	void (*bl_func)(void *, int);
 	void *bl_arg;
 	SLIST_ENTRY(blink_lcd) bl_next;
 };
 extern void blink_lcd_register(struct blink_lcd *);
 #endif	/* _KERNEL */
 #endif	/* !_LOCORE */
 #endif /* _MACHINE_CPU_H_ */